Sakurai Yuki is an orphan with a mysterious ability. Found near the fence of his current home, the Asahi Orphanage, Yuki strives for independence. The last thing he wants is to be a burden on anybody. His ability makes this nearly impossible, however; whenever he touches someone, he feel their emotions and see the darkness within their hearts and exactly what caused such darkness. Unable to control his ability, Yuki has often made insensitive blunders while trying to empathize with the person he feels pain for. Now, however, with death threats clouding his judgement and his ability increasing immensely, what will happen when a man claiming to be Yuki's older brother appears?